Magnesia brick

Magnesia brick Introduction:

The magnesia brick is made of magnesium oxide as the main raw material. Because of its high refractoriness, magnesia brick has a high specific heat capacity at high temperatures, and is mainly used in the permanent layer of the electric furnace to provide heat storage.

The melting point of MgO is as high as 2800℃, and the refractoriness of magnesia bricks is generally high, reaching above 2000℃. Therefore, magnesia bricks have good high temperature resistance, high temperature vacuum stability is good, and strong resistance to alkaline slag.

Magnesite brick (Magnesite Brick) magnesium oxide content of more than 90%, alkaline refractory material with square magnesium as the main crystal phase

Magnesite brick can generally be divided into two categories: sintering magnesium bricks (also known as firing magnesium bricks) and chemical combination of magnesium bricks (also known as magnesium bricks). The purity and the high -fired magnesium bricks are directly contacted by the magnesium grain grains, which are called directly combined with magnesium bricks; bricks made of electric melting magnesium are called electric melt and then combined with magnesium bricks.

Magnesium bricks have high fire resistance, very good alkaline resistance residue performance, and the softening of the lotus starts high, but the heat shock resistance is poor. The sintering magnesium bricks are made of magnesium bricks. After crushing, ingredients, mixed training, and molding, they are burned at high temperatures at 1550 to 1600 ° C. The firing temperature of high -purity products is above 1750 ° C. No magnesium brick is an appropriate chemical binding agent to magnesium, which is made of mixed, forming, and drying.

Burning magnesium bricks use high -quality sintering magnesium sand as the main raw material, and uses pulp as a binding agent. After mixed and high -pressure molding, it was burned in a high -temperature tunnel kiln above 1550 ° C. Have good thermal stability, anti -erosion and anti -peeling performance. Widely used in industrial kiln such as turntable furnaces and arc furnaces as fire resistance materials.

Magnesia brick Advantages: 

Electric -melting magnesium bricks have the advantages of dense brick structure, high mechanical strength, and small impurities. It is mainly used in the high temperature area of the heat storage room of large glass kiln. Electric magnesium is made of high -quality magnesium sand as the raw material. The English name Fused Magnesite. Magnesium, water magnesium ore, or magnesium hydroxide extracted from seawater are burned by high temperature. Strong anti -hydration ability,high refractoriness, high specific heat capacity.